Title:
MIMOビーム形成に基づくシングルキャリア周波数分割多元接続システム
Document Type and Number:
Japanese Patent JP2009510918
Kind Code:
A
Abstract:
A multiple-input multiple-output (MIMO) beamforming-based single carrier frequency division multiple access (SC-FDMA) system is disclosed. At the transmitter, a fast Fourier transform (FFT) is performed on transmission data to generate frequency domain data. The frequency domain transmit data is mapped to assigned subcarriers. An inverse fast Fourier transform (IFFT) is performed on the transmit data mapped to the assigned subcarriers to generate time domain transmit data. The time domain transmit data is transmitted via antennas. At a receiver, an FFT is performed on the received data to generate frequency domain received data. Subcarrier demapping is performed to extract data mapped on the assigned subcarriers. A channel estimator generates a channel matrix which is decomposed into U, D and V H matrices. A channel distortion and interference between transmit and receive antennas are equalized based on the decomposed channel matrices to the extracted frequency domain received data.
Inventors:
Chang Guo Dong
Kyle Jun-Rinpan
Robert Lind Olesen
Alan Wai. Tsai
Kyle Jun-Rinpan
Robert Lind Olesen
Alan Wai. Tsai
Application Number:
JP2008533501A
Publication Date:
March 12, 2009
Filing Date:
September 25, 2006
Export Citation:
Assignee:
Interdigital Technology Corporation
International Classes:
H04J99/00; H04B7/04; H04J11/00; H04L27/01; H04W16/28; H04W72/04
Foreign References:
| WO2006016409A1 | 2006-02-16 | |||
| WO2004038985A2 | 2004-05-06 | |||
| WO2005053186A1 | 2005-06-09 | |||
| WO2004002047A1 | 2003-12-31 |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe